One benefit of having a Global Entry card is that you can use the TSA Pre-Check lanes to speed through security on domestic flights. This is the line at the McNamara Terminal at Detroit Metro Airport. Ellen Creager / Detroit Free Press/MCT

PreCheck passengers can keep their shoes, belts and coats on during the screening and don’t have to unpack their computers or containers of liquids.

Travelers can apply for PreCheck through one of three of the U.S. Customs and Border Patrol’s trusted traveler programs (Global Entry, Nexus and Sentri).

The other way to apply for PreCheck is through a loyalty rewards program from one of nine airlines — JetBlue, Alaska, American, Delta, Hawaiian, Southwest, United, US Airways and Virgin America.

Starting Thursday, travelers who are not members of loyalty programs can also apply for PreCheck at an application center in LAX’s Terminal 5. Applicants must fill out a form and provide fingerprints and an $85 nonrefundable fee.

Passengers who are cleared to use the PreCheck lines may see a symbol on their tickets, telling them to use the faster lines.

But being approved for the PreCheck program is never guaranteed, even if you meet all of TSA’s conditions. That is because the TSA randomly removes a number of qualified passengers to prevent terrorists from gaming the system.